HALE AP, Руководство по эксплуатации и обслуживанию

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Operating Procedures
Sec II- 3
Booster Pumps
Running the engine at speeds higher than
1200 RPM during priming is not recom-
mended since it will not improve priming
operation and may cause damage to the
pump.
IF THE DISCHARGE GAUGE READING DOES
NOT INCREASE, THE INTAKE GAUGE
READING DOES NOT FALL BELOW ZERO,
OR THE PRIMING PUMP DOES NOT
DISCHARGE WATER TO THE GROUND IN 30
TO 45 SECONDS, DO NOT CONTINUE TO
RUN THE PRIMING PUMP. STOP THE PUMP
AND CHECK FOR AIR LEAKS OR POSSIBLE
PUMP TROUBLE.
10. Gradually open the discharge valve until
water emerges in a steady stream. Then
open the other discharge valves to the
desired setting.
11. Open the engine throttle gradually until the
desired pressure or flow is reached.
As the throttle is opened, increase the pressure
gauge reading with engine speed. If the engine
speed increases without an increase in
pressure, the pump is nearing cavitation.
Cavitation will be discussed in detail later.
Reduce the flow from the pump to maintain
pressure or reduce the pressure (throttle) to
maintain flow.
13. If a pump shutdown is desired while pumping
from draft, reduce the engine speed to idle,
and close the discharge valves. To resume
pumping, open the throttle and discharge
valves.
14. Set the automatic relief valve according to
department policy. Refer to the Relief Valve
Procedures later in this section.
15. If the pump overheats and is not equipped
with the Hale TRV valve, open the valve to
access the pump auxiliary cooling system, or
capacity will be reduced.
2. Bring the truck to a complete stop.
3. Apply the truck parking brake.
4. Shift the truck transmission to the NEUTRAL
position.
REFER TO DEPARTMENT PROCEDURES
ON SETTING WHEEL CHOCKS AND HOSES.
ALL VALVES, DRAIN COCKS, AND CAPS
SHOULD BE CLOSED.
5. Engage pump PTO.
DO NOT LEAVE THE CAB OR ATTEMPT
TO PUMP UNTIL ALL THE INDICATOR
LIGHTS IN THE CAB ARE ON.
6. Exit the driving compartment only after all the
above steps are completed and the indicator
lights in the cab and on the panel are on.
DO NOT ADVANCE THE THROTTLE
UNLESS THE "OK TO PUMP" INDICATOR
LIGHT IS ON.
7. Verify the pump panel shift indicator light is
on.
8. Activate the priming pump by pulling the
control handle located on the pump panel.
9. Monitor the intake and discharge master
gauges. The pump is primed when the
intake indication reading falls below zero,
and the discharge pressure starts to in-
crease. Water may also be heard discharg-
ing to the ground.